tuple1 = ('小龙虾', '大闸蟹', '皮皮虾', '火鸡面', [1 , 2, 3])
# TODO 访问元素
print(tuple1[0])
print(tuple1[1])
print(tuple1[-3])

# 切片
print(tuple1[:3])
print(tuple1[::])

# TODO 验证修改元素,不可以修改
# tuple1[0] = '你好'   #不可以修改
# tuple1[-1][1] = 9
# print(tuple1)


